Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. Stories of peoiple on plaquenil Indocin and plaquenil Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as. Mechanism of action of hydroxychloroquine as an antirheumatic drug. Fox RI1. Author information 1Department of Rheumatology, Scripps Clinic and Research Foundation, La Jolla, CA 92037. The antimalarial agents chloroquine and hydroxychloroquine have been used widely for the treatment of rheumatoid arthritis and systemic lupus erythematosus. PLAQUENIL is indicated for the suppressive treatment and treatment of acute attacks of malaria due to Plasmodium vivax, P. malariae, P. ovale, and susceptible strains of P. falciparum. It is also indicated for the treatment of discoid and systemic lupus erythematosus, and rheumatoid arthritis. CONTRAlNDICATIONS Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. Plaquenil contraindications ativan Ativan - FDA prescribing information, side effects and uses, Mechanism of action of hydroxychloroquine as an antirheumatic drug. Plaquenil and iplInjection dose of chloroquineChloroquine flatworms Plaquenil is sometimes given only once per week. Choose the same day each week to take this medicine if you are on a weekly dosing schedule. Take Plaquenil with a meal or a glass of milk. To prevent malaria Start taking Plaquenil 2 weeks before entering an area where malaria is common. Continue taking the medicine regularly during your stay. Plaquenil Uses, Dosage & Side Effects -. PLAQUENIL® - Food and Drug Administration. Plaquenil hydroxychloroquine sulfate dosing, indications.. Lorazepam Moderate Caution is warranted with the coadministration of hydroxychloroquine and antiepileptic drugs, such as lorazepam. Hydroxychloroquine can lower the seizure threshold; therefore, the activity of antiepileptic drugs may be impaired with concomitant use. Drug interactions such as these can increase your risk of side effects, including drowsiness, confusion, or difficulty breathing. To avoid these complications, talk to your healthcare provider prior to taking the supplement about any potential drug interactions with valerian root that may apply to you. Long QT syndrome incidence is increasing in general population. A careful pre-, peri- and post-operative management is needed for patients with this syndrome because of the risk of Torsades de Pointes and malignant arrhythmias. The available data regarding.